DE82006C

DE82006C -

Info

Publication number: DE82006C
Application number: DENDAT82006D
Authority: DE

Description

KAISERLICHES JfIMPERIAL Jf

PATENTAMT.PATENT OFFICE.

KLASSEGREAT

Den Gegenstand der vorliegenden Erfindung bildet eine selbsttätige Regulirvorrichtung für Membranpumpen, deren Membran unter Vermittelung von Zwischenwasser, durch einen Plungerkolben bewegt wird.The subject of the present invention is an automatic regulating device for Diaphragm pumps, the diaphragm of which, through the intermediary of intermediate water, is carried out by a Plunger is moved.

Die Regulirvorrichtung soll die Entstehung eines Ueberdruckes in solchen Membranpumpen verhüten, der besonders häufig in den Fällen eintritt, wo die Pumpe zum Speisen der Filterpressen oder ähnlicher Apparate dient, die zum Trennen klarer oder unreiner Flüssigkeiten von festen Bestandteilen bestimmt sind. The regulating device is intended to prevent overpressure in such diaphragm pumps prevent, which occurs particularly frequently in cases where the pump is used to feed the filter presses or similar apparatus intended for separating clear or impure liquids from solid components.

Bei den bisher in Gebrauch stehenden Membranpumpen ist dieser Ueberdruck eine· Folge der schlechten Wirkung des Ueberdruckventiles, welches in die Druckleitung der zu behandelnden Flüssigkeit eingeschaltet 'ist. .In the diaphragm pumps in use up to now, this overpressure is a Result of the bad effect of the pressure relief valve, which in the pressure line of the to treating liquid is switched on. .

Dieses Ventil wirkt aus folgenden Ursachen' schlecht: Erstens, weil es auf seinem Sitz und mit seiner Stange infolge der Beschaffenheit der Flüssigkeit kleben bleibt, und zweitens, weil es durch Sand und Kies, der in der Flüssigkeit enthalten ist, schnell zerstört wird.This valve works for the following reasons' bad: firstly, because it is on its seat and with its rod as a result of its nature the liquid sticks, and secondly because it is through sand and gravel that is in the If it contains liquid, it is quickly destroyed.

Diese verschiedenen Ursachen machen das Ueberdruckventil fast unwirksam, obgleich es durch'Gegengewicht oder eine Feder genau eingestellt ist; es wirkt selten bei dem gewünschten Druck und infolge dessen tritt dann die Flüssigkeit aus den Fugen aus und hat oft den Bruch der Pumpe zur Folge. ,These various causes make the pressure relief valve almost ineffective, although it does is precisely adjusted by a counterweight or a spring; it rarely works on the desired one Pressure and, as a result, the liquid then escapes from the joints and often breaks the pump. ,

Diese Uebelstände werden durch die vorliegende Regulirvorrichtung beseitigt, indem die Wirkung der Membran im gegebenen Augenblick aufgehoben wird,
wird dabei überflüssig.These inconveniences are eliminated by the present regulating device, in that the action of the membrane is canceled at the given moment,
becomes superfluous.

Das Ueberdruckventil Die neue Regulirvorrichtung ist wesentlich dazu bestimmt, in selbsttätiger Weise einen beliebigen Druck zu begrenzen, der in Apparaten, wie Filterpressen, die von Membranpumpen gespeist werden, unveränderlich sein soll. Es geschieht dies, ohne die Bewegung des Plungerkolbens zu unterbrechen, welcher durch Zwischenwasser die Membran der Pumpe bewegt und, in für die Vorrichtung besonders charakteristischer Weise, ohne der Luft Eintritt in den Raum zwischen dem Kolben und der Membran "während des Wirkens der Regulirvorrichtung zu gestatten; wäre nämlich letzterer Fall möglich, so würde die Luft sich mit dem Zwischenwasser vermischen und dadurch schliefslich das Zwischenwasser so elastisch machen, dafs es nicht mehr die Bewegungen des Plungers auf die Membran übertragen könnte, d. h. die Pumpe würde aufhören zu wirken. Wenn der Druck in der Filterpresse auf seinem Maximum angekommen ist, wird die Membran unbeweglich, aber der Plunger setzt seine Bewegungjbrt und drückt das im Pumpenstiefel enthaltene Wasser abwechselnd in die Regulirvorrichtung und wieder zurück, wodurch das Saugen und Nichtsaugen der Pumpe bei jedem Kolbenhub veranlafst wird.The pressure relief valve The new regulating device is essentially intended to provide an automatic to limit any pressure in apparatus such as filter presses used by diaphragm pumps fed, should be immutable. It does this without the movement to interrupt the plunger, which through water between the diaphragm of the pump moved and, in a particularly characteristic way for the device, without the entry of air in the space between the piston and the diaphragm "during the operation of the regulating device to allow; if the latter case were possible, then the air would become with the Mix the water between them and this makes the water between them so elastic make that it no longer transmit the movements of the plunger to the membrane could, d. H. the pump would stop working. When the pressure in the filter press has reached its maximum, the diaphragm becomes immobile, but the plunger does sets his movement and pushes the im The water contained in the pump boots alternately into the regulating device and back again, causing the pump to suck and not suck on each piston stroke.

Auf der Zeichnung ist die neue Regulirvorrichtung dargestellt.The drawing shows the new regulating device.

Fig. 1 ist ein senkrechter Schnitt durch dieselbe,Fig. 1 is a vertical section through the same,

Fig. 2 zeigt die Vorrichtung an einer gewöhnlichen Membranpumpe angebracht undFig. 2 shows the device attached to an ordinary diaphragm pump and

Fig. 3 ist eine andere Ausführungsform derselben, insofern der hohle Plungerkolben hier gleichzeitig als Regulirvorrichtung ausgebildet ist.Fig. 3 is another embodiment of the same in that the hollow plunger is here is designed as a regulating device at the same time.

Claims

The regulating device (Fig. 1) consists of an open-topped container α of any shape, which in its lower part through the pipe socket -b receives the water in the pump boot when the pump is not supposed to suck, but which returns this water again when the pump is supposed to suck. .

As soon as the pressure in the supplied apparatus (filter presses) has reached a certain level, this pressure makes the diaphragm q of the pump (Fig. 2) immobile, and when the plunger then moves downwards, the water rises through the pipe b, lifting that d by a coil spring and a nut c exactly on the pressure of the powered apparatus set valve and penetrates into the container a. The pump then does not exert any pressure on the water column to be pumped.

If the piston now goes up again, the water is sucked in again from the container α and flows back into the pump boot through the valve f , which is also precisely regulated by a spring g; The pump therefore does not exert any suction on the water column to be pumped. This back and forth movement of the water takes place with every piston stroke of the pump until the pressure in the supplied apparatus has decreased and the diaphragm has the effect of the Piston again follows. The regulator then acts without further ado.

To start the pump, the container α (Fig. 1) is provided with the necessary water, which is filled through the funnel m and the height of which is regulated by opening the cleaning tap 0. During the first piston stroke, the water from α flows into the pump and the latter now acts as if the regulating device were not there at all, and the membrane q sucks and presses the liquid to be treated as usual. If the pressure in the filter press or similar apparatus is too great, the membrane, as shown in FIG. 2, is against the. the upper wall of their clearance is pressed against and the plunger can no longer put them into action. The latter, however, during its descent displaces an amount of water corresponding to its volume from the pump, which flows through valve c into the container α , whereby the pump ceases to be able to suck and press until, as already mentioned, Aqt pressurize the filter press or similar device.

The regulating device can also be connected to several diaphragm pumps instead of one will.

Ρλτεν τ-An s pines:

An automatic regulating device for diaphragm pumps operated by a plunger with intermediate water, characterized by a container (a) which is open at the top and which is provided with two oppositely acting valves (c and f) at its bottom and communicating with the chamber of the pump boot it says that when the membrane is immobile due to the pressure in the pressure line, the piston pushes the intermediate water in the pump boot through one valve into the container during the pressure stroke, but sucks it back through the other valve into the pump boot during the suction stroke both valves always remain covered by the water, so that the entry of air through the valves into the pump boot and therefore a reduction in the efficiency of the pump is avoided. ■■ .'.'...

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For this purpose ι sheet of drawings.